The series follows a group of rich, privileged, and elite high school students as they are groomed to take over their families' business empires. These wealthy students seem to have everything under control, except their love lives. Kim Tan (Lee Min-ho) is a handsome and wealthy heir to a large Korean conglomerate who is sent to study abroad in the U.S. But in reality, it's a form of exile, as his elder half-brother back home, Kim Won (Choi Jin-hyuk) schemes to take over the family business. While in the States, Kim Tan bumps into Cha Eun-sang (Park Shin-hye), who has arrived from Korea in search of her older sister who claims that she is in need of money for her wedding. When Kim Tan's fiancée, Rachel Yoo (Kim Ji-won), arrives to bring him back to Korea, his heart is torn between love and duty. Both Eun-sang and Kim Tan return to Korea. Slowly, he finds himself falling for her, later realizing that she's the daughter of his family's mute housekeeper. Meanwhile, Rachel's future stepbrother and Kim Tan's former best friend, Choi Young-do (Kim Woo-bin) (who also go to the same school as Kim Tan and Eun-sang) starts falling for Eun-sang as well. Troubles arise as the heirs realize the differences between money and the real world and they soon learn what love is.